21006957308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3498827}}^1$

素因数の和:3498929

約数の個数: 24

約数和(自身を含む): 39186873600

約数和(自身を除く): 18179916292

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 6004, 3498827, 6997654, 13995308, 66477713, 132955426, 265910852, 276407333, 552814666, 1105629332, 5251739327, 10503478654, 21006957308]

約数ペア:

[(1, 21006957308), (2, 10503478654), (4, 5251739327), (19, 1105629332), (38, 552814666), (76, 276407333), (79, 265910852), (158, 132955426), (316, 66477713), (1501, 13995308), (3002, 6997654), (6004, 3498827)]